Investigation of flood discharge variations using Pavement Permeable and Infiltration Trench methods (Case Study: District 4 of Tehran )

Today, with population growth and, consequently, urbanization, runoff has become a serious problem in urban management. Therefore, runoff control and management is very important. In this research, the 4th district of Tehran with an area of ​​about 62 square kilometers and with geographical and hydrological conditions commensurate with the city of Tehran on a small scale as the studied area is considered.The purpose of this research is to achieve a practical approach to urban runoff control.In this research, using the SWMM model capabilities for Tehran's 4th district, considering the environmental factors, two designs of the best management solutions (BMP) under the intrusion network scenario and delayed repositories for controlling maximum runoff are quantitatively taken and Finally, their efficiency in reducing the total volume of runoff from the basin has been studied.